Chlorine Derivatives of Pyridine. Part IX. Preparation and Orientation of 3,5-Dichloropyridine was written by Sell, W. J.. And the article was included in Journal of the Chemical Society, Transactions in 1908.COA of Formula: C6H4Cl2N2O This article mentions the following:
The well-known basic character of this substance suggests that the Cl atoms occupy the 3,5-positions. It is also analogous to dibromopyridine which has been proved to hold Br in the 3,5-positions. Specimens of each were converted into diethoxypyridines and the two proved to be identical. In the experiment, the researchers used many compounds, for example, 3,5-Dichloropicolinamide (cas: 5468-71-3COA of Formula: C6H4Cl2N2O).
3,5-Dichloropicolinamide (cas: 5468-71-3) belongs to amides. Compared to amines, amides are very weak bases and do not have clearly defined acid–base properties in water. On the other hand, amides are much stronger bases than esters, aldehydes, and ketones. Ionic, or saltlike, amides are strongly alkaline compounds ordinarily made by treating ammonia, an amine, or a covalent amide with a reactive metal such as sodium.COA of Formula: C6H4Cl2N2O
Referemce:
Amide – Wikipedia,
Amide – an overview | ScienceDirect Topics